diff --git a/gso/oss-params-example.json b/gso/oss-params-example.json
index 98ee26d5e8212038c0b972f01a2f78d0a75aedfd..86e65d7f4309d2729d08bbcd7ada03b12ec0955f 100644
--- a/gso/oss-params-example.json
+++ b/gso/oss-params-example.json
@@ -1,4 +1,7 @@
 {
+  "GENERAL": {
+    "public_hostname": "https://gap.geant.org"
+  },
   "RESOURCE_MANAGER_API_PREFIX": "http://localhost:44444",
   "IPAM": {
     "INFOBLOX": {
@@ -22,4 +25,4 @@
     "auth": "Bearer <token>",
     "api_version": 1123
   }
-}
\ No newline at end of file
+}
diff --git a/gso/services/provisioning_proxy.py b/gso/services/provisioning_proxy.py
index ec282b84bba0fcd3e39d0729fd3760312de9d1c7..d1dd1864e3b935d0fc5e688ce50aae751891ed52 100644
--- a/gso/services/provisioning_proxy.py
+++ b/gso/services/provisioning_proxy.py
@@ -1,9 +1,8 @@
 import logging
 
-from gso.products.product_types.device \
-    import DeviceBlock
+from gso.products.product_types.device import DeviceBlock
 from gso import settings
-# import requests
+import requests
 
 logger = logging.getLogger(__name__)
 
@@ -17,8 +16,13 @@ def provision_node(
 
     logger.debug(f'[disabled] provisioning node {node_subscription_params}')
 
-    # r = requests.get(
-    #     f'https://{pp_params.api_base}'
-    #     f'/api/version',
-    #     params=node_subscription_params.dict())
-    # r.raise_for_status()
+    parameters = {
+        'callback': oss.GENERAL.public_hostname,  # TODO: implement
+        'device': node_subscription_params.dict()
+    }
+
+    r = requests.post(
+        f'https://{pp_params.api_base}'
+        f'/api/device',
+        params=parameters)
+    r.raise_for_status()
diff --git a/gso/settings.py b/gso/settings.py
index 0846e5f2ae2f983f7216666df34a8388e0697853..a5e13d6c7367d9e17230a5bc58bade7d3a9185da 100644
--- a/gso/settings.py
+++ b/gso/settings.py
@@ -4,6 +4,10 @@ import os
 from pydantic import BaseSettings
 
 
+class GeneralParams:
+    public_hostname: str
+
+
 class InfoBloxParams(BaseSettings):
     scheme: str
     wapi_version: str
@@ -40,6 +44,7 @@ class ProvisioningProxyParams(BaseSettings):
 
 
 class OSSParams(BaseSettings):
+    GENERAL: GeneralParams
     IPAM: IPAMParams
     RESOURCE_MANAGER_API_PREFIX: str  # api prefix
     PROVISIONING_PROXY: ProvisioningProxyParams